Self-heating sad-iron.



J. BORDAS.

SELF HEATING SAD IRON* APPLIOATION FILED FEB. 15, 1909.4 Y

@amm 1m28, 1909,

UNUSED srafrns JOHN BORDAS, OF DUNKIRK, NEW YORK.

SELF-HEATING SAD-IRON.

specicauon of Letters raient.

Patented Dec. 28, 1909.

Application tiled February 15, 1909. Serial No. 478,054.

To all idiom. it muy concern: Be it known that I, JOHN Bonnxs, a citizenof the United States, residing at Dunkirk.

in the county of Chautauqua and State of t New York, have invented a newand useful Self-Heating Sad-Iron, of which `the following is aspecification.

This invention relates generally to self heating sad irons, and moreparticularlyv to one of that class employing gas as a fuel.

The object of the invention is to improve the manner in which theheating medium is disseminated within the body of the iron, whereby toutilize practically all of-the heat units for performing. effectivework, and` so to ventilate the body that perfect combustion will ensue,thereby preventing smoking and thus the escape of disagreeable odors,and further to protect the hand of the user from injury or discomfortfrom escaping heated air.

lVith the above and other objects in view, as Awill appear as the natureof the invention is better understood, the same consists in the novelconstruction and combination of parts of a self heating sad iron, aswill be hereinafter fully described and claimed. In the accompanyingdrawings forming a part of this specification, and in which likecharacters of refcrenceindicate corresponding parts: Figure 1 is a viewin perspective of a sad iron constructed in accordance with the presentinvention. Fig. 2 is a View in vertical longitudinal section, on anenlarged scale. Fig. 3 is a transverse sectional view on an enlargedscale. .j

The hollow body l of the iron is shown as fusiform in contour, althoughit may be of any other preferred shape, and is provided near its faceand adjacent to its u'pper edge with rows of orifices 3 and 4 respec;

tively, through the former of which cold air is drawn to supportcombustion; through the latter heated air escapes.

Projecting beyond one end of the body is a boss 5 in Which is securedone end of a burner tube 6, the other end of which is secured in a boss7 projecting inward from the innerV wallvv of the nose of the body. Thistube is provided along its under side. with orifices 8 through which themixed gas and air escape to the body and are ignited. The

means for mixing the fuel and air consists of an ordinary mixing chamber9 that is secured to the boss 5 by screws 10 and in the end wall ofwhich is secured a union 11 l carrying a jet 12 and a valve 13. Theunion is designed to be connected with a gas jet i by a flexible pipeasusual. In order to conj serve the heat units, and check their too irapid escape, the bottom of the body conj tains a loose mass 111 of arefractory inaterial, Such as asbestos wool, which may partially, orwholly, surround the burner tube, as shown in Fig. 3. This'fiiling willalso prevent passage externally of the body of tongues of ame, and thusin a positive manner preclude danger of injury to the user. f

The cover embodies two spaced plates '15 and 16, the former of which isprovided with a depending tiange 17 having orifices 18 that registerwith the orifices 4: of the body. Secured to the plates and 16 andconforming in shape to the perimeters thereon its under side with spacedorifices 2O that. register with similar'orifices 21 in the, plate 15 andat its outer side with orifices 9.2 that discharge air laterally atpoints farthest removed from the fuel, whereby such air is cooledsufficiently to remove all danger of burning the user of the iron.

15 is a block 23-of asbestos, and disposed between the plates 15 and 1Gis a second block 24C of asbestos, and the-se blocks are of suchthickness that they lag the plate 16 to such an extent as to prevent itfrom becoming hot enough to burn the hand.

The plate 16 has secured to it a handle 25` of any preferredconstruction, between the base of which and the plate is interposed avsheet 2G of insulating material. In order to ignite the burner tubethere is a perforated tapered door 27 provided whichl fits a similarlyshaped opening in the side of the body and has secured to it one end ofa spring 28 the other end of which is riveted or otherwise assembledwith the body.

In using the. iron., the union is connected with a gas jet Ain a mannerthat will be understood, and the valve 13 is opened thus allowing thegas to pass to, the mixing chamber and thence to the burner, where ityis ignited at the door 27, the same being turned to one side for thenurpose. The ignited gas jets discharging rom the openings S insinuatcthemselves through the loose asbestos wool and cause it to becomeincandescent, whereupon it willsheat the body rapidly and easily. Aswill be ap- Secured to the under side of the plate of is a Ventilatingtube 19 which is provided i i through the openings 2l and 2Q.

parent, air to support combustion will be drawn in through the openings3 and after circulating through the body will escape In its assagetoward these openings, the heated air establishes-an injector action atthe openings i8 and 4 which operates to draw cool air into the upperportion of the body and thus prevents the cover from becoming heated toa degree that would be uncomfortable to the hand of the user.

The improvements herein described While simple in character will befound of the highest efiiciency in use, and Will coperate in theproduction .of a practical and durable form of sad iron.

`What is claimed is:

i. A iron comprising a body provided near .its face and upper edges withorifices, a burner tube arranged Within the body, a filling of loosefibrous refractory material surrounding the tube, means for supplying acombustible fluid to the tube, and a cover embodying a depending flangehaving orifices registering with those of the upper portion of the body,and a Ventilating tube combined with the cover and having orificescommunicating with the interior of the body and also having orificescommunicating with the external air.

2. A sad iron oomprisin a body provided near its face and upper e geswith orifices, a burner tube arranged within the body, a filling ofloose fibrous refractory materia-l surrounding the tube, means forsupplying-l a combustible fluid to the tube, a 'cover embodying adepending :flange having orifices registering with those of the u perportion of the body, a .Ventilating tube combined with the cover andhaving orifices communi.-

upper portion of the body, a Ventilating tube combined with the coverand having orifices communicating with the interior of the body andtheexternal air, and lagging material interposed in said cover and securedt'o the lower surface thereof.

4. A sad iron comprising a hollow body portion, means for conducting thehot air off and supplying cool air in the place thereof, a burner tu earranged in said body portion, a filling of loose refractory materialsurrounding the tube, means for supplying a combustible fluid to thetube, a cover embodying a depending flange having orifices registeringwith those of the upper portion of the body, a ventilating tube combinedwith the cover a-nd'having orifices communicating with the interior ofthe body and the external air, and means disposed in the side of saidbody whereby a 'et may be ignited.

In testimony that I claim the foregoing as my own, I have hereto affixedmy signa-A ture in the presence of tivo witnesses.

JOHN BORDAS. Witnesses:

Gno. WIEBEL,

B. E. FARNHAM.

